Priming device for internal-combustion engines.



W. GRIIISCHEIT.

IIIINING IJEvIcE Eon INIEIINIIL coNIsusIIoN ENGINES.

APPLICATION FILED DEC. l?, i915.

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i i i WILLIAM GRIKSCHEIT. 0F DETROIT, MICHIGAN.

To all whom t may concern.'

Be it known that I, WiLLIAM Gninsorinrr, a citizen of the United States, and resident of Detroit, in the county of Wayne and State of Michigan, formerly of the city and county of New York and State of New York, have invented 4certain new and useful Improvements in Priming Devices for Tnternal-Combustion Engines, of which the following is a specification.

This invention relates to a type of valve, structure designed for use as a priming device for internal combustion engines.

The object of my invention is to provide a priming device of simple and eiiicient construction whereby when the valve element thereof is open a direct uninterrupted inlet or outlet is afforded between the interior of the engine cylinder and the atmosphere, and whereby also such inlet or outlet, as the case may be, can be readily closed and effectually sealed, as requirements may demand.

A further object of my invention is to provide a priming device of such construction that when the inlet or outlet is sealed dust accumulation in the priming cup and valve seat is avoided, thus obviating the otherwise liability of such dust being washed into the cylinder during the priming operation and causing wear and tear on the pistons, cylinders and valves, and also liability of such dust entering the valveseat and causing undue wear thereon.

My invention comprises an apertured element for connection with an engine cylinder, a socket member adjustably mounted on said element, and a valve element permanently mounted in said socket member and including a rotary member having a tubular extension which projects beyond the socket member and affords a supply or discharge portion which can be set to open or closed position with respect to the apertured element, as will be hereinafter described and claimed.

In the drawings- Figure 1 is an elevation of a priming device embodying my invention, showing the same as applied to a section of an engine cylinder. In this view the feed cup and its integral valve member are shown as positioned for the feeding of a priming charge to the cylinder; the dotted lines indicating such cup and valve member in closed position.

Application filed December 17, 1915.

Specicaton of Letters Patent.

Patented Dec. d, 1917.

Serial No. 67,311.'

Fig. 2 is a longitudinal vertical section of the device in open position.

Fig. 3 is a similar section on a plane at `right angles to Fig. 2.

Fig. 4t is a section similar to Fig. 2, but showing the valve as set and locked in sealmg position.

Fig. 5 is a horizontal section, as on the line 5 5 of Fig. et.

Fig. 6 is a section similar to Fig. 2, illustrating a modification of the invention.

Fig. 7 is a section on a plane at right angles to Fig. 6.

Referring to the drawings, 10 designates a part of an engine cylinder to which a priming device embodying the principle of my invention is applied. This device in its preferred form comprises a centrally bored plug 11 externally screw-threaded at its upper and lower ends, as at 12 and 13 respectively. The lower end 13 of the plug is screwed into the internally-threaded apertured portion of the engine cylinder. On the upper portion of the plug is screwed a cap or socket member 14 the upper portion of which isslotted to provide two spaced up-projecting lugs 15 which are bored to receive a cylindrical cross-piece 16. This piece is forcibly driven into the perforations of the lugs 15 so as to be iXedly held thereby. The body ofthe cross-piece is provided with a diametrical port 17 in axial alinement with the bore of the plug; suoli cross-piece constituting, in effect, a fixedvalve member.

Snugly fitted between the lugs 15 and rotatably mounted on the body of the pin, is a flat circular head 18 having a diametrical port 19 which, by actuation of the head, can be moved into or out of axial alinement with the port 17 of the cross-piece. The head thus constitutes a relative movable valve member which is a permanent part of the socket member. The head is formed on the lower end of an expanded cup-like extension 20 which is in direct axial communication with the valve port 19. When the cup occupies the upright position shown in Figs. 1, 2 and 3, the ports of the respective valve members are in registry, and a direct open passage is thus afforded between the cup and the interior of the engine cylinder to permit the ready introduction of a priming charge of gasolcne or other volatile hydrocarbon to the cylinder. Tn case the passage should become clogged by the lodgment therein of carbon 0r other obstruction, a cleaning wire or the like can be readily run through the direct passage and the obstruction thus be removed With facility'.

By grasping the cup and swinging it from the vertical, either to the right or left, as indicated by the dotted lines in Fig. 1, the ported valve member 18 can be readily positioned to interrupt the communication of its port with that of the liXed member 16 and thus seal the mouth of the plug passage, and then by properly turning the cup about the aXis of the plug the socket member can be screwed Ydown and the circumferential edge of the member 18 forced hard down upon and clamped against the opposing seat portion of' the plug. Thus the plug passage is .eteetually closed and the valve is securely locked in sealing position. (See Figs. l and 5.)

rlhe device above described is simple in construction and e'ective in operation. It Well iiullils the objects of my invention above mentioned. lts constituent parts can be cheaply made and readily assembled,l and as the cup and valve head are permanently attached to the socket member, the latter, in

vvirtue of its screw connection with the plug,

socket member screwed thereon having an upwardly projecting portion, a ported valve member l'iXedly held in said projecting portion, and a complementary ported member rotatably mounted on said ixed member,

and having a projecting feed member in r axial alinement with the port oi said com plementary member.

2. A device of the character described comprising a vertically apertured plug, a socket member screwed thereon having a pair of spaced upwardly projecting lugs, a valve member iixed in and between said lugs having a diametrical port in axial alinement with the bere of the plug, a circular valve member rotatably mounted on said fixed member having a diametrical port movable into and out of registry with the port oi the fixed member, and an integral toed member projecting lrom said rotatable valve member.

Signed at Detroit in the county of lllayne and State ci' Michigan, this 13th day of December, A. D. 1915.

WLLIAM GRIKSCHEIT.

Gopies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C.

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